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SEMI G75.3-069 8 © SEMI 1998 1 SEMI G75.3-0698 TEST METHOD FOR MEA SUREM ENT OF THE PEEL STRENGTH OF PROTECTIVE FILM ON LEA DFRA ME TAPE 1 Summary of Method 1.1 A tensile tester is used to peel t h e fi lm away from the …

SEMI G75.2-0698 © SEMI 1998 6

7 Related Documents

7.1 JIS Specification

JIS K 6854 — Testing Methods for Peel Strength of

Adhesives

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SEMI G75.3-0698 © SEMI 19981

SEMI G75.3-0698

TEST METHOD FOR MEASUREMENT OF THE PEEL STRENGTH OF

PROTECTIVE FILM ON LEADFRAME TAPE

1 Summary of Method

1.1 A tensile tester is used to peel the film away from

the adhesive (see Figure 1) and directly measure the

peel strength with a calibrated load cell.

Figure 1

Attaching of Test Piece for T-Type Peel Test

2 Equipment

2.1 Tensile tester with appropriate load cell, clamping

chucks, and a chart recorder.

2.1.1 Tensile tester shall keep constant the traveling

speed of clamping chucks, of which the traveling

distance can be read to the nearest 1 mm, and shall

simultaneously record the load imposed on the sample.

It shall measure and record the imposed load with ± 1%

on a chart recorder.

3 Test Condition

3.1 Peel strength testing shall be carried out at the

following ambient conditions:

Temperature — 23 ± 5°C

Humidity — 50 ± 5% RH

4 Sampling

4.1 The sampling is one sample per one lot. The

vendor must report the definition of lot, if the customer

requires it.

4.2 The width of the tape tested shall be 15 ± 0.2 mm.

5 Equipment Calibration and Setup

5.1 Refer to the tensile tester manufacturer’s

equipment manual for setup and calibration.

5.2 The sample shall be attached and peeled for T-type

peel test shown in Figure 1.

5.3 Both ends of a test piece shall be attached to the

grips of the testing machine specified in Section 2.1.

5.4 The pulling rate shall be set to 300 mm/minute.

5.5 The pulling distance shall be 125 mm minimum

from the start of peeling.

5.6 The peel strength shall be recorded in grams.

6 Measurements

6.1 As shown in Figure 2, draw the optimum straight

line which is parallel to the abscissa for peeling length,

that passes through the peeling curve, and find the

peeling load after eliminating initial 25 mm of peeling

length.

Figure 2

Obtaining Peeling Load by the Optimum Straight

Line Method